153. Tip #31: Ellen Pompeo

154. Tip #30: Janet Jackson

"Just because a trend happens doesn't mean you should adopt it. Wear what best fits your shape."

Jeffrey Mayer/WireImage

155. Tip #29: Sandra Bullock

"From stylists I've learned to get things altered, since everyone's body is different."

Jim Spellman/WireImage

156. Tip #28: Eva Mendes

"My mom taught me to moisturize with cocoa because it's natural."

Gilbert Flores/CelebrityPhoto

157. Tip #27: Jenna Fischer

"Outfits always look better if you have a good blowout. My character Pam would look better if her hair did."

Janet Mayer/SplashNewsOnline.com

158. Tip #26: Catherine Zeta-Jones

"I walk the golf course and carry my own bag; four-mile courses. It's a great workout."

Jeffrey Mayer/WireImage

159. Tip #25: Kate Beckinsale

"I start my mornings by putting a hot towel with a little lavender sprinkled on it over my face."

Jean-Paul Aussenard/WireImage

160. Tip #24: Maria Menounos

"Tear out images from magazines and buy a few signature pieces. Use them as staples in your closet."

Scott Downie/CelebrityPhoto

161. Tip #23: Marcia Cross

"Some people think wearing powder ages them, but try it anyway. For me it mattes my makeup and blends it well."

Gilbert Flores/CelebrityPhoto

162. Tip #22: Hilary Duff

"If you get tired of something in your closet, do something else with it. I'll put rouching in my sweaters that I thought were too long, or chop off the sleeves and make a cap-sleeve. It keeps your clothes fresh and fun."

Gilbert Flores/CelebrityPhoto

163. Tip #21: Molly Sims

"Keep a spoon in the refrigerator to put on your eyes. Leave on each eye for five minutes to treat any puffiness."

Vince Bucci/Getty

164. Tip #20: America Ferrera

"I am all for beauty and feeling pretty, but growing up is about differentiating between what you do for yourself and not doing things for other people."

172. Tip #12: Naomi Watts

173. Tip #11: Kate Bosworth

"I'm super-conscious about my skin and have never gone to bed without washing my face with Cetaphil."

James Devaney/WireImage

174. Tip #10: Rihanna

"I carry safety pins with me everywhere. If something pops off, like a strap, you can take care of it."

Marsland/Goff/INF

175. Tip #9: Gwen Stefani

"Water is a must have. I drink lots of it to stay healthy."

Tony Barson/WireImage

176. Tip #8: Jennifer Garner

"My biggest secret for how I lost weight is interval running. Run a minute, rest a minute, run a minute. Then run two minutes and rest two. You can do anything for two minutes and your metabolism keeps going while you're resting."

Vince Flores/CelebrityPhoto

177. Tip #7: Jennifer Lopez

"Express yourself in everything you do and that means in what you wear as well."

George Pimentel/WireImage

178. Tip #6: Rachel Bilson

"Forget the old rules. I love white all year round. It's cooler to wear it when you aren't supposed to."

Patrick Rideaux/Rex

179. Tip #5: Beyonce Knowles

"To get motivated to work out, find an old picture of yourself that you look great in and post it up."

Andy Kaye/CelebrityPhoto

180. Tip #4: Drew Barrymore

"Have fun with fashion. I'm not intimidated by what I see on models. I like to play with clothes and express myself."

Jim Spellman/WireImage

181. Tip #3: Sarah Jessica Parker

"Hemlines change, but you don't have to participate. Go for the wow factor with amazing accessories."

Starmax

182. Tip #2: Jessica Biel

"I exercise regularly. Working out is a positive thing to do: You are unstoppable when you feel confident and beautiful."

Axelle Woussen/BauerGriffin

183. Tip #1: Halle Berry

"If you buy clothes with clean lines, they'll last decades. I've worn items that are eight years old that work because they're classic."